diff --git a/libavformat/http.c b/libavformat/http.c
index cdcf4ccde6..d2e9ae1619 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -1176,10 +1176,10 @@ static int http_buf_read(URLContext *h, uint8_t *buf, int size)
         memcpy(buf, s->buf_ptr, len);
         s->buf_ptr += len;
     } else {
-        if ((!s->willclose || s->chunksize < 0) && s->off >= s->filesize)
+        if ((!s->willclose || s->chunksize == UINT64_MAX) && s->off >= s->filesize)
             return AVERROR_EOF;
         len = ffurl_read(s->hd, buf, size);
-        if (!len && (!s->willclose || s->chunksize < 0) && s->off < s->filesize) {
+        if (!len && (!s->willclose || s->chunksize == UINT64_MAX) && s->off < s->filesize) {
             av_log(h, AV_LOG_ERROR,
                    "Stream ends prematurely at %"PRIu64", should be %"PRIu64"\n",
                    s->off, s->filesize